Checking where data com from

[alirezaok]

hi

i have a form in www.site1.com/form.php

it sends data to www.site2.com/get.php with post methos

i want in get.php checking if data sended from site1.com then they process

get.php:

$tel=$_REQUEST['tel'];

how do i check this?

[leatherback]

There is the $_SERVER['HTTP_REFERER'] which will tell you where they have come from. However, it is set by the clients browser, and as such not reliable..

The other way woul dbe that you store a ranom string in database on server 1 and pass that string on through the form. You can then verify on server1 whether the [person is valid.

OR you can on server 1 do the processing and generate a call to server 2 in the background. After server 2 gives the OK, you refresh the user to server 2.